This file contains the Windows 2000 driver for the Astra 2100S scsi scanner as well as the drivers for the scsi controller card. Also some support for the 1200S scanner is included as well. After downloading, double-click the file to start the extraction process. Accept the default unzip folder and continue by clicking the UNZIP button. There is a readme.txt file that explains what most files are so read it first. The large file is the driver/scanner software... Vistascan v3.55.